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// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
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// Hinnant & John Maddock 2000. Permission to copy, use, modify,
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// sell and distribute this software is granted provided this
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// copyright notice appears in all copies. This software is provided
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// "as is" without express or implied warranty, and with no claim as
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// to its suitability for any purpose.
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// See http://www.boost.org for most recent version including documentation.
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#ifndef BOOST_TT_IS_VOLATILE_HPP_INCLUDED
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#define BOOST_TT_IS_VOLATILE_HPP_INCLUDED
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#include "boost/config.hpp"
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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# include "boost/type_traits/detail/cv_traits_impl.hpp"
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# include "boost/type_traits/is_reference.hpp"
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# include "boost/type_traits/is_array.hpp"
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# include "boost/type_traits/detail/yes_no_type.hpp"
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# include "boost/type_traits/detail/false_result.hpp"
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// should be the last #include
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#include "boost/type_traits/detail/bool_trait_def.hpp"
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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//* is a type T declared volatile - is_volatile<T>
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BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_volatile,T,::boost::detail::cv_traits_imp<T*>::is_volatile)
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BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_1(typename T,is_volatile,T&,false)
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#if defined(__BORLANDC__)
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// these are illegal specialisations; cv-qualifies applied to
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// references have no effect according to [8.3.2p1],
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// C++ Builder requires them though as it treats cv-qualified
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// references as distinct types...
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BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_1(typename T,is_volatile,T& const,false)
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BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_1(typename T,is_volatile,T& volatile,false)
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BOOST_TT_AUX_BOOL_TRAIT_PARTIAL_SPEC1_1(typename T,is_volatile,T& const volatile,false)
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using ::boost::type_traits::yes_type;
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using ::boost::type_traits::no_type;
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yes_type is_volatile_tester(void const volatile*);
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no_type is_volatile_tester(void const*);
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template <bool is_ref, bool array>
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struct is_volatile_helper
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: ::boost::type_traits::false_result
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struct is_volatile_helper<false,false>
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template <typename T> struct result_
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BOOST_STATIC_CONSTANT(bool, value = (
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sizeof(detail::yes_type) == sizeof(detail::is_volatile_tester(t))
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struct is_volatile_helper<false,true>
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template <typename T> struct result_
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BOOST_STATIC_CONSTANT(bool, value = (
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sizeof(detail::yes_type) == sizeof(detail::is_volatile_tester(&t))
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struct is_volatile_impl
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is_reference<T>::value
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>::template result_<T>
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BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_volatile,void,false)
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#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
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BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_volatile,void const,false)
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BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_volatile,void volatile,true)
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BOOST_TT_AUX_BOOL_TRAIT_IMPL_SPEC1(is_volatile,void const volatile,true)
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} // namespace detail
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//* is a type T declared volatile - is_volatile<T>
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BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_volatile,T,::boost::detail::is_volatile_impl<T>::value)
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#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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#include "boost/type_traits/detail/bool_trait_undef.hpp"
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#endif // BOOST_TT_IS_VOLATILE_HPP_INCLUDED